JP3993722B2 - Microbubble discharge nozzle, nozzle loading container and flow promotion cylinder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is for purifying micro-bubbles with a diameter of several tens of microns into water and air in order to improve the cleaning ability of cleaning water due to dirt in purification of rivers, lakes, tap water, etc., washing machines, toilets, etc. The present invention relates to a nozzle and its associated device.
[0002]
[Prior art]
The water purification function of microbubbles has already been widely known as described in, for example, the Nikkan Kogyo Shimbun issued on July 24, 1998. It is necessary to adjust the size of the generated bubbles freely according to the use of the jet power necessary for spreading the purification effect over a wider range in the closed water area where there is no property. In order to satisfy these required characteristics, many closed water purification devices have been proposed in the past, as seen in JP-A-5-64800, JP-A-5-146696, JP-A-8-230761, and the like. Has been.
[0003]
[Problems to be solved by the invention]
However, each of the above conventional microbubble generators has a complicated structure, and the equipment itself becomes large-scale, which inevitably increases the cost.
The problem to be solved by the present invention is that the structure is simple, the applicability is high, and the liquids necessary for the wide diffusion of the purification effect are generated at the same time as generating the bubbles of various sizes as the microbubble generator. It is an object of the present invention to provide a microbubble discharge nozzle and its associated device that satisfy the required characteristics of obtaining a jet output that causes movement.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, a microbubble discharge nozzle according to the present invention includes an introduction part of a pressurized liquid and a gas, a pressurized liquid and a gas are introduced from the introduction part , and the introduced gas is discharged as a microbubble. in the micro-bubble ejection nozzles which have a cylindrical bubble generating space dispersed in, the end surface of the bubble generating space side of the introduction part, pressurized liquid of a plurality of introducing the pressurized liquid into the bubble generating space Opening the introduction hole, and further, the gas formed by the gas introduction pipe inserted from the opening on the side surface of the introduction portion and surrounded by the plurality of pressurized liquid introduction holes is introduced into the bubble generation space opening a gas introduction hole for introducing, in which an adjusting valve for adjusting the gas introduction amount to the gas inlet pipe for the communication with the gas inlet hole.
[0005]
The pressurized liquid introduced into the bubble generation space from the opening of the pressurized liquid introduction hole is discharged into the space under high pressure to generate a peeling area. Due to this peeling phenomenon, the gas introduced from the gas introduction hole is dispersed in the discharge water flow as microbubbles (fine bubbles). The dispersion amount and size of the microbubbles can be arbitrarily adjusted by adjusting the degree of opening of the gas introduction amount adjusting valve.
[0006]
Further, by providing a gas introduction hole having an opening in the bubble generation space in the introduction portion, the dispersed state and size of the dispersed bubbles can be miniaturized.
Furthermore, by providing the bubble generation space forming cylinder with a flow velocity reduction suppression hole, it is possible to suppress energy loss occurring in the peeling region and to mix fine bubbles into the liquid in the connected discharge side pipe.
Moreover, it can apply to the use which discharges microbubbles in air | atmosphere by providing a reduced diameter part or filling parts, such as an activator, in the downward position of the cylinder for bubble generation space formation.
Furthermore, by attaching the microbubble discharge nozzle to the pressurized liquid side connecting tube in a detachable manner, it is possible to easily select a nozzle for use in a liquid and a usage environment.
By arranging these microbubble discharge nozzles or nozzle loading containers concentrically inside the large-diameter cylinder, the flow of water in a closed water area or the like can be promoted.
[0007]
The nozzle of the present invention can obtain a discharge liquid activated by an active agent by providing a container filled with an active agent at a position below the bubble generation space and contacting and passing the discharge liquid in which microbubbles are dispersed. it can.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Example 1
Preferred embodiments of the present invention, as introduced pressurized liquid, the water pressure water of ^{1.5kg / cm 2 ~3.0kg / cm 2} , the implementation of a nozzle for closing water purification using air as the introduced gas This will be described based on an example.
[0009]
FIG. 1 shows the structure of a nozzle 10 according to the first embodiment. FIG. 4A shows the configuration of the introduction portion 1 viewed from the pressurized liquid inflow side on the upper surface, FIG. 5B is a longitudinal section, and FIG. 5C is a diagram viewed from the bubble discharge port side on the lower surface.
As shown in FIG. 2B, the nozzle 10 has an introduction part 1 for a pressurized liquid and a gas and a bubble generation space 2. In the figure, the bubble generating space forming cylinder 3 in which the introduction portion 1 and the bubble generating space 2 are formed is formed as a separate body, and each of them is fitted and integrated. It can also be formed.
[0010]
In the introduction part 1, a pressurized liquid introduction hole 4 that opens on the upper surface thereof is formed, and opens to a bubble generation space 2 formed under the introduction part 1. The pressurized liquid introduction hole 4 has a truncated cone shape with the upper surface of the introduction part 1 as the bottom surface, and the size and number of diameters differ depending on the intended use of the nozzle and the type of pressurized liquid. As shown in a), with respect to the end surface, a plurality of (six in this case) openings with an opening cross-sectional area of the bubble generation space 2 of 10 to 20% are opened so that each end surface is symmetrical. , It penetrates through the introduction part 1 and opens into the bubble generation space 2. Reference numeral 5 denotes a gas introduction hole. The gas introduction hole 5 is formed by a gas introduction tube 6 inserted into the gas introduction hole 5 of the introduction part 1 from the opening on the side surface, and is opened radially to the bubble generation space 2 and introduces gas to the outside of the opening on the side surface. A quantity adjusting valve 7 is attached. Moreover, the flow velocity reduction suppression hole 8 opens to the bubble generation space 2 side as shown in FIG. The number and diameter of the flow velocity reduction suppressing holes 8 are adjusted by the pressure and amount of the pressurized liquid introduced, and the number of the pressurized liquid introducing holes 4 and the opening position in the bubble generating space 2.
[0011]
Example 2
FIG. 2 shows the structure of the nozzle 20 according to the second embodiment. The figure shows the shape of the bubble generating space forming cylinder 3 and the fact that the flow velocity reduction suppressing hole 8 is not opened in the bubble generating space forming cylinder 3 and the bubble generating space forming cylinder 3 on the bubble generating space 2 side. 1 is the same as the embodiment of FIG. 1 except that a reduced diameter portion 9 is formed toward the discharge surface side.
In contrast to the case of the first embodiment, the nozzle 20 of this embodiment is suitable for use in an application in which a liquid mixed with fine bubbles is discharged into the air, for example, for attachment to a faucet or the like. In this case, the reduced diameter portion 9 provided in the lower position of the bubble generation space 2 can be used for the purpose of discharging microbubbles into the atmosphere.
[0012]
Example 3
FIG. 3 shows the structure of the loading container 30 when the introduction unit 1 according to the third embodiment is used alone.
The loading container 30 is a loading container when used in a liquid, and can be easily attached to and detached from the connecting pipe 15 by using screws or the like at both ends of the container, and the introduction part 1 can be attached and detached freely. Further, by providing the misalignment prevention rail 16, the rotation of the introduction portion 1 can be prevented. In the figure, 11 is a gas introduction tube insertion hole, and 12 is a packing.
[0013]
Example 4
FIG. 4 shows the structure of the loading container 40 when the introduction unit 1 according to the fourth embodiment is used alone.
In the case of this embodiment, in contrast to the case of Embodiment 3, it is a loading container when used in the air. By attaching the anti-scattering net 14 such as an activator to the discharge port, the bubble generating space 2 is provided. Filling with an activator or the like was made possible. In the figure, reference numeral 13 denotes an anti-scattering net pressing rubber such as an active agent, and 19 denotes a net mounting cap.
[0014]
Example 5
FIG. 5 shows a structure of the flow promoting cylinder 50 according to the fifth embodiment when the introduction unit 1 is loaded into the loading container 30 of the third embodiment.
In the flow promoting cylinder 50, the flow of water is further promoted in a closed water area or the like by attaching the loading container 30 to the center of the large-diameter cylinder 17 with the fixing bracket 18. The upstream side of the flow promoting cylinder 50 is expanded in a trumpet shape so that the fluid flows into the cylinder 17 smoothly.
[0015]
【The invention's effect】
As described above, with the nozzle structure of the present invention, a large amount of microbubbles can be supplied over a wide area of a closed water area with a simple structure.
Moreover, the applicable field can be applied to any of oxygen supply to the water area, removal of chlorine, washing, etc., and is not limited.
Furthermore, the energy loss which arises in a peeling area can be suppressed by providing the flow velocity fall suppression hole in the cylinder for bubble generation space formation.
By providing a reduced diameter portion or a filling portion such as an activator at the lower position of the bubble generating space forming cylinder, it can be applied to the use of discharging microbubbles into the atmosphere.
In addition, by attaching the microbubble discharge nozzle to the pressurized liquid side connecting pipe in a detachable manner, it is possible to easily select the nozzle in the liquid for the intended use and usage environment.
By arranging these microbubble discharge nozzles or nozzle loading containers concentrically inside the large-diameter cylinder, the flow of water in a closed water area or the like can be promoted.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of a nozzle of the present invention.
FIG. 2 shows a second embodiment of the nozzle of the present invention.
FIG. 3 shows a third embodiment of the nozzle of the present invention.
FIG. 4 shows a fourth embodiment of the nozzle of the present invention.
FIG. 5 shows a fifth embodiment of the nozzle of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10, 20 Nozzle 1 Introduction part 2 Bubble generating space 3 Bubble generating space forming cylinder 4 Pressurized liquid introducing hole 5 Gas introducing hole 6 Gas introducing pipe 7 Gas introducing amount adjusting valve 8 Flow rate decrease suppressing hole 9 Reduced diameter Portions 30 and 40 Nozzle loading container 11 of the present invention Gas introduction pipe insertion hole 12 Packing 13 Active agent scattering prevention net holding rubber 14 Active agent scattering prevention net 15 Connection pipe 16 Misalignment prevention rail 17 Cylindrical body 18 Fixing bracket 19 Cap 50 Flow promoting cylinder of the present invention

Claims (5)

And the introduction of the pressurized liquid and gas, from this inlet portion pressurized liquid and a gas is introduced, the microbubbles introduced gas is have a cylindrical bubble generating space that is dispersed in the discharge water flow as microbubbles In the discharge nozzle ,
A plurality of pressurized liquid introduction holes for introducing pressurized liquid into the bubble generation space are opened on the end surface of the introduction part on the bubble generation space side , and further, gas inserted from the side opening of the introduction part Opening a gas introduction hole for introducing a gas formed by the introduction pipe and surrounded by the plurality of pressurized liquid introduction holes into the bubble generating space ;
Microbubble ejection nozzle provided an adjusting valve for adjusting the gas introduction amount to the gas inlet pipe which communicates with the gas introduction hole. The microbubble discharge nozzle of Claim 1 which provided the flow velocity fall suppression hole in the cylinder for bubble generation space formation. The microbubble discharge nozzle according to claim 1 or 2, wherein a reduced diameter portion is provided at a lower position of the bubble generating space forming cylinder. A nozzle loading container in which the microbubble discharge nozzle according to any one of claims 1 to 3 is detachably attached to a pressurized liquid side connecting pipe. A flow promoting cylinder in which the microbubble discharge nozzle or nozzle loading container according to any one of claims 1 to 4 is disposed concentrically inside a large-diameter cylinder.

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